Facing unit with embedded fastening means capable of being unwound therefrom



Dec. 30. 1969 M. J. BOIARDI FACING UNIT WITH EMBEDDED FASTENING MEANS CAPABLE OF BEING UNWOUND THEREFROM 4 Sheets-Sheet 1 Filed Dec. 29, 1966 mm A mm WB i w R A M ATTORNEYS 1969 M. J. BOIARDI 3,486,280

FACING UNIT WITH EMBEDDED FASTENING MBA-NS CAPABLE OF BEING UNWOUND THEREFROM Filed Dec. 29. 1966 4-Sheets-Sheet z 1/ I a ip -p 24-}? v 25 4:7 -25 FIG. 6

INVENTOR. MARIQ J- BOIARDI ATTORNEYS Dec. 30, 1969" M. J. BOIARD'I 3,48

FACING UNIT WITH EMBEDDED FASTENING MEANS CAPABLE OF BEING UNWOU-ND THEREFROM Filed Dec. 29. 1966 4 Sheets-Sheet 3 27 26 FIG. I

29 26 W m \\\\\r 29 hum 2 4l/ 43 FIG II FIG I2 0 I I f Kym A L 55 I D FIG. I4 FIG. l3 INVENTOR MARIO J. BOIARDI BY 464;, SW 8440140114414 ATTORNEYS Dec. 30. 1969 M. J. BOIARD] 3,48 ,289

FACING UNIT WITH EMBEDDED FASTENING MEANS CAPABLE OF. I

BEING UNWOUND THEREFROM Filed Dec. 29, 1966 4 Sheets-Sheet 4 s 27 26 IO INVENTOR. MARIO J. BOlARDl BY 4 5 Mal/M ATTORNEYS nited States Patent 0 "ice 3,486,280 FACING UNIT WITH EMBEDDED FASTENING MEANS CAPABLE OF BEING UNWOUND THEREFROM Mario J. Boiardi, 2501 Arlington Road, Cleveland Heights, Ohio 44118 Filed Dec. 29, 1966, Ser. No. 605,770 Int. Cl. E04f 21/18; E04g 11/06; E04c 1/04 US. Cl. 52-127 14 Claims ABSTRACT OF THE DISCLOSURE This invention is concerned generally with attaching titles or slabs of material to a wall which has been previously constructed and the specific invention is the individual tile or slab itself. The tile of this invention is formed from fluids which are poured into a mold. Lengths of manually bendable material or lines are disposed within the mold and become embedded in the solidified tile. Each length of material has a wound portion at one end which is in proximity to one of the surfaces of the tile and is adapted to be unwound by being pulled outward. The result is a tile with one end of a line embedded in the tile and the other end projecting from the tile and adapted to be used to mechanically attach the tile to a wall. Frequenly, on a construction project tiles must be cut into smaller pieces to conform to the shape of the wall. Because of this fact, a plurality of lines with wound portions are most often symmetrically located in each tile of this invention, whereby bisected or quartered tiles will have at least one wound portion in each of the several pieces.

This invevntion relates to a means for fastening a unit to a surface. More particularly, this invention relates to a fastening device adapted to be contained within a unit, for example a wall tile, to be fastend to a surface. More specifically, the invention relates to a fastening means to be incorporated within the confines of a unit such as a tile but which includes a portion in proximity to at least one of the surfaces thereof which may be extended or elongated to provide a means for mechanically securing the unit to the Wall.

Many building codes in the United States, as well as foreign countries, require that members over a certain size to be mounted on walls in excess of certain heights, be secured mechanically as well as adhesively. This is often done with corrosion resistant copper wire. In s me instances the codes apply to all units to be attached at a height in excess of 8 feet, for example, and others apply to every forth course of units.

The previous practices for mechanically securing tiles or panels to a wall include drilling the unit at the sides, or at the top or bottom, or in the rear surface and grouting a suitable mounting means, such as a Wire, in the bore. This may be done either at the point of manufacture or at the job site. It is most often done at the point of use because at the point of manufacture it is unknown at what location the panel or tile will be installed. Moreover, the protruding fastening means presents packing, handling, and shipping difficulties if installed at the point of manufacture by prior art practices. Additionally, this has heretofore been unsatisfactory because the precise location of the complementary fastening means on the wall is unknown at the point of manufacture. While certain of these problems can be overcome by installing the fastening means in the tile at the job site, such a practice is extremely expensive.

This invention overcomes the ditficulties of the prior art by incorporating in the unit such as a tile or panel, at the time of manufacture, a fastening means which is ex- 3,486,280 Patented Dec. 30, 1969 tendible or extensible at the job site to provide a device for mechanically securing the tile to the wall. Accordingly, the invention is directed to a device for mounting a unit such as a tile, to the prime vertical wall, sofiit or ceiling, wherein a portion of the device may be extended or protracted from the unit as a result of its coiled or wound nature at the time of manufacture. The practice of this invention also insures that the fastening means will be securely retained in the unit and not susceptible to release or dislodgement as is the case where it is grouted in a bore which is drilled after the tile is manufactured.

The fastening means contemplated by this invention are useful in connection with tile made from either pressure cast or free cast cement, clay, latex emulsion, resin, plastic, or any combination of wall facing tile, panel or spandrel unit.

The shortcomings of the prior art have been overcome by incorporating a wound portion of ductile material Within a unit during its manufacture.

At the time of manufacture of the unit, a continuous length of material, including a coil or wound portion on at least one end thereof is inserted in the mold for the pressure cast or free cast member so that the end of the coil is in contact with the inside vertical wall of the mold. In the alternative, the coil or wound portion may be placed in a vertical manner so as to extend from the rear face of the unit in contrast of being extended from one or more side walls of the unit.

Each coil may be placed at the opposite end of the continuous length of material which is of sufiicient length to extend from one wall of the mold to the opposite wall of the mold. In the instances where the wire is continuous, it may have a non-linear portion, such as a bend, loop, hairpin curve, or serpentine configuration, to provide increased anchoring and tension against the side walls. Furthermore, the wound portion, or coil, at an end of the continuous wire may be encased in a sleeve, or equivalent, to prevent the entry of the material being cast. Preferably however, the Wound portion or coil is configured and constructed so that adjacent portions of the coil, or convolutions, prevent entry of the plastic material into the interior of the coil.

In the case of free cast or pressure cast units, a terminal portion of the length of material may extend from the end of the wound portion or coil to rise along the vertical Wall of the mold to provide a recess in the side of the unit into which a portion of the mounting means may be recessed after extension, at the time of installation and during butt joint installation. This extension also acts as a marker indicating the location of the coil to be unwound from the unit.

In the instance of a mounting means having only a single wound portion thereon, a cat-tail type end of the wire, opposite to the wound end portion, may be attached to reinforcing mesh incorporated in the cast or pressed unit for additional strength. Added anchoring may be provided within the units which do not contain reinforcing mesh by bridging the internal portion of the mounting means with a suitable bridging material.

The actual configuration of the wound or coiled portion is not critical and may be either cylindrical, conical, rectangular or irregular, so long as the wound portion of the mounting means is capable of outward extension, relative to the unit, at the time of installation. In effect, the overall dimensions of the mounting means is increased by extracting and extending the wound portion to protrude from the unit and thereby provide a fastener. The wound portion of the mounting means should be totally contained within the confines of the unit with the extremity of the wound portion(s) in proximity to the walls of the tile so that it may be grasped and extended to provide a fastening means. In substance, this invention involves the provision of an extensible fastening means which is cast in situ within the confines of a wall tile, or equivalent unit, wherein the extensible portions of the mounting means are accessible so that they may be grasped and extended.

Upon extraction and extension of the wound portion at the time of installation, the unit may be attached to a wall from which an eyelet or equivalent means projects. The unit is mechanically attached to the wall by securing the extended (wound portion) portion of the mounting means to the eyelet or equivalent.

The size of the wire and the size of the wound or coiled portion may vary widely and depend upon the weight and dimensions of the unit to be fastened. Suitable wire sizes have included 8 to 14 gauge copper. Copper is often required by applicable building codes but in other instances, any ductile or malleable material capable of extraction and extension of a wound portion may be used. In addition, the cross section of the wire or the configuration of the wound or coiled portion is not critical so long as the outer dimension of the wound portion will contract when elongated.

It can thus be seen that the wound portion of the mounting means of this invention which is cast in situ within the confines of the tile, contracts and falls away from the walls of the confining chamber when extracted and extended.

Thus, it is an object of this invention to provide means for fastening a unit such as a tile to a wall or equivalent surface.

It is a further object of this invention to provide a mounting means for a unit comprising a continuous length of material wound upon itself at least at one end thereof to provide a wound portion capable of extension or protraction from the unit.

It is an additional object of this invention to provide a mounting or securing means for a unit such as a wall tile comprising a continuous length of material secured within the unit to be fastened to a surface wherein one end of the length of material is coiled or wound and capable of extraction from the unit for use in mounting the unit to a surface.

It is a further object of this invention to provide a means for fastening a unit, such as a wall tile, to a surface which is substantially totally contained within the unit during shipping, handling and storage, and which is capable of being unwound or protracted therefrom at the time of installation.

It is a further object of this invention to provide means for securing a unit to a surface whereby a wound portion of a continuous length of material is capable of being unwound to extend through and protrude from a face or side wall of a unit for use in fastening the unit to a wall.

It is a further object of this invention to provide means for fastening a unit to a surface including a coiled portion wherein the coiled portion is extracted and extended from a recess in a side of the unit thereby to provide a convenient means for mechanically securing a unit to a surface even when closely abutting an adjacent unit.

It is a further object of this invention to provide means to be cast in situ within a unit for fastening a unit to a. surface including a continuous length of material having coils near each end thereof wherein the portion between said wound portions is of an irregular contour thereby to effect a positive interior anchoring of the mounting means within the unit.

It is a further object of this invention to provide means adapted to be cast in situ within a unit for securing a unit to a. surface which is conveniently capable of attachment to additional bridging material within the unit thereby to provide a more positive interior anchoring.

It is a further object of this invention to provide means on a length of material to be cast in situ within a unit according to the invention which may be attached to a reinforcing mesh contained within the confines of the unit.

Another object of this invention is to provide a means for mechanically securing a tile to a wall which comprises a length of ductile or malleable material, such as copper, aluminum, bronze or low carbon steel, and in cludes a coiled or wound portion which is cast in situ within the tile in proximity to a wall thereof so that it may be easily grasped and extended or protracted to provide a fastening means.

Another object of this invention is to provide a fastening means adapted to be incorporated in a mortar joint in a poured or laid up block wall which comprises a length of ductile or malleable material and includes a coiled or wound portion to be cast in situ in the poured wall or mortar joint as the wall is constructed, but exposed slightly so that its extremity may be grasped and extended to provide a tie or fastener for a facing on the wall.

Other and more specific Objects of this invention will be apparent from the detailed description to follow."

In the drawings:

FIG. 1 is a perspective view of a plurality of units mounted on a surface wherein the means for fastening the units are shown in extended and fastened position.

FIG. 2 is a side view of the units mounted upon a surface, as in FIG. 1, wherein the extended portion of the fastening means are contained within a masonry material for mechanically fastening, as well as an illustration of adhesively securing of the units.

FIG. 3 is a perspective view of a unit prior to use containing a plurality of fastening means according to the invention.

FIG. 4 is a fragmentary view of a section of a unit, as shown in FIG. 3, illustrating the differences between the non-extended coil within the unit prior to use and the coil as extended which is ready to be attached to .1 surface.

FIG. 5 shows a fragmentary, sectional view of a portion of a unit according to the invention having the coil of the fastening device in its extended position and fur ther showing its relationship to a recess in the side of the unit so that the extended wire may extend from the unit transverse to a face thereof.

FIG. 6 is a fragmentary view, partially in section. showing the relationship of the mold for casting the units and the mounting devices, according to the invention wherein the coiled portions are positioned to extend from the side walls of the unit.

FIG. 7 illustrates another embodiment of a unit ac cording to the invention, wherein the coils and legs of the fastening device are formed relatively transverse of the continuous length so that the coil may be extended through the rear face of the unit to be mounted.

FIG. 8 is a fragmentary view of a section of FIG. .7 showing the coil of the mounting device in its extended position relative to the recess within the unit and extending from the surface thereof.

FIG. 9 is a fragmentary, sectional view of a portion of a unit showing a recess in the unit which was occupied by a leg of the coil and the mounting device ii its extended relationship thereto.

FIG. 10 is a cross-sectional view of a mold and uni containing a mounting device capable of extension through the rear face of the unit.

FIG. 11 is a plan layout of a unit according to the invention, containing a plurality of mounting devices within the unit so that if the unit is cut into a halfsection or a quarter-section, each section thereof will contain at least two mounting devices according to the invention. Further the non-linear nature of the fastening means between the coiled portions to provide a more positive anchoring is shown.

FIG. 12 shows another embodiment of the mounting device according to the invention in a plan layout of a unit wherein the length of material is formed to an L-shaped configuration for more positive interior anchormg.

FIG. 13 shows the mounting device according to the invention which has been provided with internal bridging on each length to provide a more positive interior anchormg.

FIG. 14 shows a mounting device according to the invention wherein the interior end of the wire is attached to a reinforcing mesh incorporated in the cast or pressed unit.

FIG. 15 shows the wound portion of the fastening device in a disc-like shape at a depth into the unit approximately the thickness of the continuous length.

FIG. 16 shows a fragmentary plan view of the unit at the coil portion of the mounting device, further showing that the wire is wound from the inside of the wound portion to the outside thereof.

FIG. 17 is a view similar to FIG. 16 in which the wound portion of the wire is wound from the outside to the inside of the coil.

FIG. 18 shows a fragmentary plan view of the fastening device wound in a cone shape.

FIG. 19 is a cross-section along 19-19 of FIG. 18 further showing the spiral conical form of the wound portion of the mounting device.

FIG. 20 is a cross-section of the wound portion of the mounting device wherein the wire is wound in a generally rectangular cross-section in a pyramid like configuration.

FIG. 21 is a view similar to FIG. 20 in which the wire is randomly wound in the coil portion and contained in an encasement to prevent entry of the materials from which the tile is made.

FIG. 22 shows the mounting device of the invention as a separate item from the unit positioned in a mortar joint of a masonry construction which is capable of being conveniently withdrawn from the mortar joint for attachment of units, which may be unit also according to the invention.

FIG. 23 shows still another example of the use of the mounting device according to the invention positioned in a concrete wall during casting and capable of being conveniently withdrawn therefrom for use in subsequent attachment of facing materials.

In FIGS. 1 and 2 a plurality of units 10, in an abutting relationship with a suitable adhesive 11, for example mortar, therebetween are mounted on a surface 12 by an adhesive bonding 13 and fastening means 14. The units may be pressed or cast cement, clay, latex, emulsion, resin, plastic or any composition wall facing tile, panel or spandrel unit. Surface 12 may be any vertical wall, soflit, or ceiling of any construction material.

A fastening means 14 is shown in its protacted position drawn from an opening 15 of unit 10. It can be understood that as the wound portion of wire 14 is withdrawn from the opening 15, the coil may be pulled away or collapsed from the walls of the opening 15 with relative ease.

One means for attaching extended portion 14 of the fastening means to the wall is by providing small cavities 16 in the wall 12 so that the extended portion 14 of the wire may be inserted and grouted or surrounded with a suitable adhesive, for example fast setting masonry material.

Unit 10 comprises a facing 17 which is generally cast in the bottom of a die and is shown diagrammatically by the larger aggregate 17 in FIGS. 5 and 6. Thereafter, the backing 18 is cast over the facing material to form the unit 10. It can be understood that facing 17 and backing 18 form convenient front and rear faces of the unit bounded by relatively narrow edge faces.

FIG. 3 shows a unit 10 comprising facing 17 and backing 18 according to the invention in which mounting means 20 and 21 traverse the unit in a horizontal direction and mounting means 22 and 23 traverse the unit 10 in a vertical direction. The mounting means are very similar and accordingly only structure of mounting means 20 will be discusssed, it being understood that mounting means 21, 22 and 23 are similar to mounting means 20.

Mounting means 20 comprises a continuous length of material, for example, wire, strip, bar stock, and the like which may be formed at both ends to produce wound or coil portions 25 and 26 near the opposite ends of the continuous length. A tang or leg portion 27 is preferably retained between the end of the continuous length and the wound portion 26 and a similar leg portion 28 may be retained between the end of the continuous length and the wound portion 25. Leg portions 27 and 28 provided convenient means for gripping the mounting means for unwinding the coil from the opening 15 of the unit for use in attaching unit 10 to a surface. It may further be understood that during manufacture leg portions 27 and 28 are recessed at 33 into the side of the unit as can be evidenced from FIG. 4. However, as shown, the wound portions are disposed in proximity to the edge surfaces.

Mounting means 20 may also include a non-linear configuration 29 between the coil portions 25 and 26 to provide additional interior anchoring of the mounting means within the unit. The geometrical configuration of portion 29 is generally not critical as long as additional surface material is presented transversely to the linear dimension of the mounting means 20 to provide the interior anchoring as heretofore mentioned. Also, portion 29 imparts a spring-like character to the device to assist in retaining it in the proper orientation in the mold or die during manufacture.

It can be understood that the unit 10 of FIG. 3 is designed for attachment to a surface 12 similar to that shown in FIG. 1 wherein the coiled portion 27 or 28 may be unwound and protracted from the side faces of the unit 10 thereafter to be attached to the surface 12.

FIG. 4 shows a unit 10 which has been partially prepared for attachment to a surface such as 12, wherein the coiled portion 26 of mounting means 20 has been withdrawn from the opening 15 in the unit 10 by un winding as shown by the elongated portion comprising 26 and 27. As heretofore mentioned, leg 27 remains recessed at 33 for convenience in shipment, handling and storage. It can be noted that mounting means 23 has not yet been prepared for attachment to a surface such as 12 since the wound portion 24 and the leg portion thereon have not yet been extracted for use in the mechanical fastening process.

By providing a plurality of mounting means such as 20, 21, 22 and 23 of unit 10, the unit may be divided into a half-section or a quarter-section if the needs of the field installation dictate, and each half-portion or quarter-portion thereof will have embedded in the partial unit a portion of the mounting means and at least two of the coiled portions for extraction and attachment to the surface.

FIG. 5 shows a cross-sectional view of a unit 10 according to the invention showing the relationship between mounting means 20 and mounting means 23, depending upon which of the two mounting means initially is placed in the mold. Mounting means 23 may be positioned either above the mounting means 20 or below, as shown in the cross-sectional view.

In a preferred embodiment of the invention the relationship of the adjacent windings of the wound portion is such that the adjacent coils or convolutions are relatively closely wound together, preferably in contact so that the material from which the tile is made will not enter the interior of the coil and render it difficult to withdraw or or unwind the wound portion from the unit. As will hereinafter be discussed, this relationship between adjacent windings may be obtained by utilizing one of the several configurations.

In FIG. 6 a cross-section of a mold 30 for manufacturing a unit 10 according to the invention is shown to include side walls 31 and 32. In this method of manufacture, the facing or first layer 17 is generally first cast into the mold 30. A mounting means, such as 20, may be placed in the mold 30 preferably before, but also either during or after casting the facing material 17. Fastening means 22 and 23 are shown as transverse to fastening means and may be placed in the mold either before or after the insertion of fastening means 20. It should be noted that the relative positions of the fastening means 20 through 23 in the unit is not particularly critical so long as a quarter or half of the unit will contain at least two wire attachments according to the applicable code. Therreafter the backing material or second layer 18 is added to form the completed unit 10. The mounting means 20 will thus be disposed in proximity to the interface of the two layers.

-It has been found convenient to use a mounting means 20 having a length from end to end including the coil portions 25 and 26 which is slightly, for example, of inch, greater than the length of the mold from wall 31 to wall 32. In this manner, the mounting means is inserted in the mold before casting the facing 17 so that the coils 25 and 26 resiliently contact the inside vertical walls 31 and 32 of the mold placing the mounting means in compression. The offset portion 29 is also important in this regard. Also, a small notch may be provided in the wall of the die to receive the tail or tang portions 2728 of the coil.

It can be further understood that recessed portion 29 may be a natural consequence of the casting process in this manner.

Where desired, as shown in FIG. 7, mounting means 20, as shown in FIG. 3, may have the wound portions 25 and 26 formed in a configuration relatively transverse to the continuous length of the material so that the legs 27 and 28 appear at the rear face of the unit 10. It can be understood that at the time of installation a leg, such as 28, may be grasped by a convenient tool in the hands of an installer and the coil portion 25 is withdrawn by unwinding from the rear face of unit 10 for attachment to a surface, such as 12 as hereinbefore discussed.

This rear face means of attachment to a surface is particularly convenient where it is desired to have a relatively close abutting relationship between adjacent units 10 mounted on the surface 12, or where it is desired to extract the mechanical linkage for unit 10 from the rear of the tile as a matter of choice. The length of mounting means 20 may be of any desired length. It can further be seen that where the unit 10 in FIG. 7 is cut at the point i of use, into half-sections or quarter-sections, each section thereof will retain means for mechanical linkage.

In FIGS. 8 and 9, fragmentary and cross-section views of a portion of unit 10 of FIG. 7 are shown wherein the coil portion 25 of the mounting means 20 has been unwound from the rear face of unit 10. A recess 33 is also shown, and it can be understood that during storage, handling and shipping, the outer contours of the unit are relatively smooth and contain no protruding wires, brackets or the like.

Opening 15 may be the logical consequence of casting the backing and facing material 17 and 18 of unit 10 during the molding process as hereinbefore described wherein adjacent coils or convolutions are in contact with each other. In the alternative, coils 27 and 28 may be incapsulated in a convenient covering to prevent entry of the casting material. It has been found that where the coils are relatively tightly Wound the backing and facing material will not enter the interior of the coil so that the opening 15 which results is merely that space in the unit 10 which previously contained the wound portions 25 and 26 of mounting means 20.

FIG. 10 shows a mold, similar to that shown in FIG. 6, but casting a unit of the type depicted by FIG. 7 with the coil normal to the length of material, wherein the facing material is cast into the mold and the mounting means 20 is placed therein in such a position that the length of the wound portions and leg portions thereon are within the confines of the unit 10 which ultimately results from the process. This may be done, for example, by the use of locating fingers. Thereafter, the backing material is added to form the finished unit.

FIG. 11 is a plan view of mounting means according to the invention, as shown in FIG. 3, wherein the non-linear portion 29 may be made of a plurality of loops, or of a serpentine character, to provide additional interior anchoring of the continuous wire mounting means. Each of the mounting means 20, 21, 22, and 23 may contain a similar non-linear portion. This is particularly convenient where the units 10 are divided into quarter-sections or half-sections of regular dimensions in that after the unit has been divided into its quarter or half-sections, each of the sections will contain two of the wound coils and a loop of the non-linear portion 29 to provide an added interior anchoring in each of the divided sections. The offset portions also add resiliency to the member which assists in maintaining its location in the die during manufacture.

Another embodiment of the invention is shown in the plan view of FIG. 12 wherein each of the mounting means 40 comprises a wound portion 41 and in which added interior anchoring for each of mounting means 40 is obtained by providing a cat-tail of L-shaped loop 43 in the interior of the unit 10.

As shown in FIG. 13, mounting means according to the invention including loop portions 51 and 52 and leg portions 53 and 54 thereon may traverse unit 10 in a manner which has heretofore been discussed. However, to provide the interior anchoring of the strength desired, bridging materials such as 55 and 56 may be provided in association with the interior of mounting means 50 to provide an additional anchoring. Bridging materials 55 and 56 may be of any suitable material, such as wire, fiberglass and the like which may be connected to the mounting means 50 in any convenient manner transverse to the direction of pull when loops 51 and 54 are unwound.

In FIG. 14, another embodiment is shown for increasing the interior strength of the fastening devices according to the invention. The unit 10 is provided with a suitable reinforcing mesh 60 which is incorporated in the cast or pressure unit during the manufacturing process. Fastening means 61, 62, 63 and 64 are provided, and may be alike. so that the discussion of only one of the fastening means is deemed necessary. For example, fastening means 60 contains a loop portion 65 and a relatively free end 66. The free end may be attached to the reinforcing mesh 60 by looping it thereover or by any other convenient means of attachment of the fastening means 61 to the reinforcing mesh 60.

In FIG. 15 there is shown a fragmentary sectional view of mold 30 and side Wall 31 into which a facing material 17 and backing material 18 have been cast. The mounting means 20 in this particular instance has a relatively shallow surface loop of wire 26 and the leg portion 27 forming a disc-type configuration having a depth approximately equal to the cross-section of the continuous length. The surface disc of wire 26 may be maintained within the confines of the unit to provide a flush surface for ease of shipment and handling as heretofore been discussed. The wound portions may be wound from the inside to the outside end. as shown in FIG. 16, or from the outside to the inside as shown in FIG. 17.

Another convenient means for winding the wound portion 26 of mounting means 20 within the unit 10 are shown 'in FIGS. 18, 20 and 21. FIGS. 18 wound portion 26 is shown comprising a generally conical or cone-type section of wire material which may be unwound from the rear surface of the unit 10 in a manner described. Alternatively, the wound portion 26 may be formed in a'generally rec tangular or square configuration as in FIG. 20.

FIG. 19 is a view along the section 19-19 of FIG. 18 showing the configuration of the spiral winding according to the invention.

As shown in FIG. 21, it may be desirable to form a wound portion 70 of the mounting means 28 in a random configuration for insertion by means of incapsulation 71 in the unit during the casting process as has heretofore been discussed.

Applicants device is also useful in the manner of conventional brick ties which are fastened to a wall to which a facing or veneer is to be secured. In a typical application, the primary wall would be cement block and the facing would be brick veneer. The fastening or mounting devices of this invention would be incorporated in the mortar joints as the cement block wall is being laid up. As the brick wall is being laid up, the wound or coiled portions are extracted from the mortar joint and the extended portion laid or incorporated into the mortar joints of the brick wall. An obvious advantage is that the device of applicants invention does not protrude to create safety hazards etc. until needed. Also the location of the joint in the brick wall is unimportant since the coil or wound portion can be made any length.

FIG. 22 shows a mounting device according to the invention which is disposed in mortar joints 84 and S5 in a tile, brick or cement wall comprising blocks 81, 82 and 83. Fastening means 86, with its unprotracted wound portion 87, is shown as contained within mortar joint 85. In mortar joint 84, the fastening device 87 has been protracted for ultimate use in the attachment of other members, such as a brick wall, to the block wall.

A further use of applicants invention is shown in FIG. 23 where mounting means 86 and 86' are shown as being cast in a poured concrete wall 88 against form 90. Note that the tang or tail portion 92 of coil 94 is secured in or to the form 9'9. Mounting means 86 is shown in the protracted or uncoiled condition, ready for use in the attachment of the desired wall facing material. Often the disc or watch spring configuration (FIG. is preferred for this application.

For ease of description the principles of the invention have been set forth in connection with several illustrated embodiments. It is not my intention, however, that the embodiments illustrated nor the terminology employed in describing them be limiting inasmuch as variations in these may be made without departing from the spirit of the invention.

1 claim:

1. In combination a facing unit and means for fastening said unit to a surface,

said unit being molded to have front and rear faces and a relatively narrow edge face,

said means for fastening including at least one length of ductile material, each end thereof extending toward a face,

a wound portion of said material in proximity to the end of each length of material disposed in proximity to a face of said unit, the wound portion extending into the unit a distance greater than the cross-sectional dimension of the length of ductile material, each wound portion being initially substantially com pletely incorporated in said unit and being capable of being unwound to protract from said unit for use in mechanically securing said unit to said surface.

2. The combination defined in claim 1 wherein the said material between said wound portion and the end opposite thereto includes an irregular contour to enhance interior anchoring of said material.

3. The combination defined in claim 1 wherein said unit includes a reinforcing element therein,

a portion of said length spaced from said wound portion being secured to said reinforcing element to enhance interior anchoring of said means for fasten- 4. The combination defined in claim 1 wherein said material is located in said unit whereby said unit, severed into quarters by two perpendicular planes passing through the front and rear faces, will contain at least one Wound portion in each quarter thereof.

5. The combination of claim 4 wherein at least two wound portions are contained in each quarter thereof.

6. The combination defined in claim 1 wherein said unit is composed of at least two layers of physically distinct material.

7. The combination of claim 6 wherein said material is disposed in said unit in proximity to the interface of V0 of the layers.

8. The combination of claim 1 wherein said unit is comprised of first and second sequentially laid layers with said material disposed substantially at the interface of said first and second layers.

9. The combination defined in claim 1 wherein each said wound portion defines a substantially tubular shape of tightly adjacent coils so disposed relative to each other as to prevent entry into the interior of said shape of the ingredients constituting said body during the molding thereof.

10. The combination defined in claim 1 wherein said material is incorporated in said unit while under longitudinal compression and retains said compression in the completed combination.

11. The fastening device defined in claim 1 wherein each wound portion is encapsulated prior to its incorporation into said unit.

12. The combination of claim 1 wherein said relatively narrow edge face constitutes a plurality of intersecting faces, each being substantially perpendicular to the front and back faces,

there being wound portions disposed near at least two faces.

13. The combination of claim 1 wherein said length of material is disposed in said unit whereby said unit bisected by a plane passing through the front and back faces, will contain at least one wound portion in each half thereof.

14. In combination, a molded body and means for attaching it to a member,

said body comprising a plurality of successively deposited layers of material,

said means for attaching including a length of material disposed substantially, completely within said body, said length of material being axially compressed, said length of material including a Wound portion in proximity to a terminal portion thereof and adapted to be manually unwound to project from the body, said length of material being disposed in proximity to the interface of two of said layers, a plurality of wound portions are disposed in said body whereby the body, when bisected, contains at least one wound portion in each half thereof.

References Cited UNITED STATES PATENTS 1,145,462 7/1915 Barton 52705 1,218,445 3/1917 Mumford 52-703 X 1,334,672 3/1920 Noullet 52-587 1,374,894 4/1921 Ambursen 52699 X 1,561,754 11/1925 Taseif 52513 1,831,565 11/1931 Jagger 52714 X 1,931,574 10/1933 Danielson 52-378 2,016,566 10/1935 \Vinship 52--587 X 2,431,104 11/1947 Bright 52-714 2,897,668 8/1959 Graham 52704 X ALFRED C. PERHAM, Primary Examiner US. Cl. X.R. 

